电动汽车充电桩谐波放大效应研究  

Study on Harmonic Amplification Effect of Charging Piles for Electric Vehicles

作　　者：杨杰 赵巧娥[1] 武晓冬[1] 杨波[1] YANG Jie;ZHAO Qiao-e;WU Xiao-dong;YANG Bo(College of Electric Power and Architecture,Shanxi University,Taiyuan 030013,China)

机构地区：[1]山西大学电力与建筑学院,太原030013

出　　处：《自动化与仪表》2021年第12期10-13,42,共5页Automation & Instrumentation

摘　　要：电动汽车充电桩运行时产生的谐波,在采用并联APF(active power filter)治理时,负载侧会产生谐波放大效应。该文提出改进APF检测跟踪策略,通过改进ip-iq检测与双重准谐振控制来精确补偿5、7次谐波,降低了谐波补偿率和改进APF拓扑结构,通过在负载侧并联无源滤波器,增大负载交流侧阻抗,两个方面来抑制充电桩负载侧谐波放大效应。仿真结果证明了改进方法的正确性。When parallel APF(active power filter)is adopted to deal with the harmonics generated by charging piles of electric vehicles,harmonic amplification effect will be generated on the load side.In this paper,an improved APF detection and tracking strategy is proposed to reduce the harmonic compensation rate by means of specific sub-harmonic detection and accurate tracking control,and an improved APF topology is proposed to suppress the harmonic amplification effect on the load side of a charging pile by means of parallel passive filters on the load side and increasing the impedance on the AC side of the load.Simulation results show that the improved method is correct.

关 键 词：充电桩 有源滤波器 谐波放大效应 谐波检测 改进拓扑结构 

分 类 号：TM71[电气工程—电力系统及自动化]